IoT Video Encoder Bandwidth Allocation via Feedback Control
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Solution Overview
Problem
Content delivery services face inefficiencies in bandwidth allocation among encoding nodes, leading to inefficient resource utilization and potential delays or lossy transmissions during high-demand events like live streaming, due to the lack of communication functionality for cooperation between nodes.
Innovation Solution
A management framework utilizing IoT-based protocols, such as MQTT, for encoding nodes to measure and share bandwidth attributes, allowing a management service to optimize bandwidth allocation based on load balancing, financial, and performance criteria, ensuring efficient distribution among nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple encoding nodes are used to handle high-volume content requests, then the content delivery capacity is improved, but bandwidth allocation inefficiency and resource utilization problems worsen
Solution Approach 1:
The patent implements a feedback mechanism where encoding nodes report their bandwidth usage and availability to a management service, which then adjusts bandwidth allocation dynamically. This closed-loop control enables the system to optimize resource distribution across multiple encoding nodes, resolving the contradiction between increased delivery capacity and bandwidth allocation inefficiency.
Solution Approach 2:
Each encoding node autonomously monitors its own bandwidth consumption and communicates this information to the management service. The nodes self-report their status without requiring external intervention, enabling efficient resource management while maintaining high content delivery capacity across the distributed encoding infrastructure.
2Device complexity
If bandwidth is allocated without coordination between encoding nodes, then device complexity is reduced, but transmission delays and data loss increase during high-demand events
Solution Approach 1:
The patent introduces a management service as an intermediary that coordinates bandwidth allocation among encoding nodes. This centralized mediator receives bandwidth status reports from all nodes and distributes optimized bandwidth allocations, ensuring reliable transmission during high-demand events without requiring complex peer-to-peer coordination between nodes.
Solution Approach 2:
The management service implements a feedback loop where it receives real-time bandwidth status from encoding nodes and responds with optimized allocation decisions. This feedback mechanism ensures transmission reliability during peak demand while keeping the coordination mechanism relatively simple, as nodes only need to report status and receive instructions rather than engage in complex mutual coordination.
3Ease of operation
If encoding nodes operate independently without communication functionality, then ease of operation is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements a simple feedback mechanism where encoding nodes automatically report their bandwidth usage to the management service, which then provides optimized allocation instructions. This maintains ease of operation as nodes require minimal configuration or complex inter-node communication, while simultaneously improving resource utilization efficiency through centralized optimization based on real-time feedback from all nodes.
Data Source
AI summary
A system and method for management of bandwidth shared by a plurality of video content encoders is provided. A management service coordinates an unequal allocation of available bandwidth among a set of encoding nodes. A management service can receive measured bandwidth attributes from a plurality of encoding nodes to determine a total available bandwidth. The management service can receive measured bandwidth attributes from a plurality of encoding nodes that is transmitted to the management service in accordance with an IoT based messaging protocol. The management service can then allocate the available bandwidth based on different criteria. The management service can then transmit the allocated bandwidth to the encoding nodes using the IoT based messaging protocol.